Oil-pump.



R. HUP?. l OIL PUMP. APPLICATION FILED MR. 23, 1907.

, 904,434.y Y Patented N0v.`17,19os.

` 2 SHEETS-SHEET 1.

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i RUSSELL Hors, or DETROIT, MICHIGAN, AssIGNoR 'ro PACKARD MOTOR CARCOM'NY,

zen of the United States; and resident of Dev unirsi) srarns PATENTOFFICE..

OF DETROIT, MICHIGAN, A QORPORTION OF WEST VIRGINIA.

To all it may concern:

Beit known that I, RUSSELL Horn, a cititroit, county of Wayne, State ofMichigan, have' invented certain new and useful Improvements invOil-Pumps, of which the ,fol-v lowing is a speciication.

' 'l'he present invention relates to improvements in oil pumps,especially adapted for use with motor vehicles, and will be described`in connection with the accompanying drawings, in which- Figure l is avertical;v sectional view through a pump constructed in accordance withthe present invention. Figs. 2 and 3 are, respectively, transverse`sections through one of the pump barrels and the connecting 'f rodbetween the pump plungers and driving.

' shaft. Fig. 4.is a plan vview partly in section.

valves. i

tetex-ruig to the drawings, 1 deslgnates the body ot' the pump withinwhich are formedj two barrels or chambers 2, each communicating withsupply ducts 3 and discharge ducts' it, said ducts communicating throughvalve controlled passages withcouplings 5, 6,-for supply'and feed pipes.A

The shaft 7 is mounted in suitable bearings inthe pump body 1, andprovided at one end with a worm wheel 8 which engages a suitable worm 9On a lshaft 10 gearedlto the driving or propelling mechanism ofthevehicle in the ordinary manner.`

The plungers 11 extend above the body l, and the upper portion oieaclris externally threaded as at'12 and provided With a longitudinalvslot 13. .Into said slots 13 in the the shait7.' The pin 14 ispreferably pro-- vided with van'intermediate section 17 -polygf f onalin cross section, which tits `in a correL spondmgly shaped passage intherod 15,'

and said pin and rod are connected by a key or Cotter pin 18.v Theconnecting rod l15 is guided and held fromv lateral motion toward eitherplunger 1l, by Walls of the slot in the body l through which it movesand the end et the eccentric pin 16 bears, against a smooth surfacetermed on said body.' The length of Speccation of LettersiPatent.Application led March 23, 1907. Serial 110.664,142.

Fig. 5 is a detail View of. one of the Patented Nov. 1.7, 190.8..

)usted position by a 'clampingbolt 20 which -is screwed therein andprovided at its. inner-l end with a tapering portion 21 adapted to fitthe correspondingly tapered seaty formed at the upper ,end of theplunger, -whereby when said pinis screwed into the sleeve and caused tobear against said `seat the upper end of the plunger is held in' 'closeengagement with the sleeve 19. Said sleeves 19 are guided by suitablepassages in a cap or cove'r 22 detachably connected with vthe pump body1,V as by screws. f

should be provided-With a stuiiing box at the upperendof the pumpbarrel, even if the parts-are madewith. the greatest care and accuracy.By the resent invention ,such stuiiing'box is provi ed by a gland 23screwed into the u per end of the ump barrel, and said glanc is heldsecure y in pla-ee by the engagement between inwardly ex- 22v-and thero'ecting head or end of the gland. Pre era ly saidv projecting headerend 25 is' made polygonal in cross section, andthe projections 24. areso posltloned that said head is engaged on opposite sides,

whereby it is e'eetually held from turninfr i when the cap 22 is Vinposition on the body vThe valves lcontrolling the passage of, oil to.and from the pump barrels have. been speciallyl designed in order toprevent any leakage. A'sshown7 the valves eachv com It has 'been foundthat pumps fof 'this type the slot 13 is readily varied -by adjizsting'atendingprojeetions 24 on the cap or cover `prise a ball 26 held againsta suitable seat f by a spring 27.A The seat is made in the such as lead,are arranged betweentheinner ends ofthe vvalve seats 'and the.. pum'body, between the .lock nuts 29 and said bo y, and

vbetween the vplugs 30 and the outer ends oit the valveseats. Thisconstruction positively prevents any leakage of oil backward around :theballe `2G, or leakage at. any other pointl abontf the valiel The ope`ation ot the pump will be readily understoodironi the foregoingdescription. [t will be seen that by connecting' the rod 15 with thepump plungers through the pin 14:

which delaeliably connected with said rod i it is poseible to readilyremove either pninp plungerl 'from the pump without disconnect ing theother, or if desired the .rod 15 may be removed withoutA aii'eetiug,reither of the plungere., The friction of the worin gear `holde`theeccentric pin 16 against the i'iiaehined face of the body l; but topreventy 1. ln an oil pump, the combination of ai;

plunger having,` a longitudinal slot ariiiiiil ing through its outerend, a :sleeve adjuntable outhe plunger to vary the length oi tlieelottherein, and means extending into said `Slot and adapted to reciprocatethe plunger.

ln aii oil )nini the combination olf a i ably formed internally to lookthe gland.

i a guide for the plunger, and niemans for replunger having'its outerend threaded and provided withV a longitudinal slot, a Sleeve? engaging'the threaded'section ot the plunger 'and :n.justabl'e-loiigitinlifitfally thereof, means for locliii'ig the I@lecveI to theplunger, and means tor reciprocating` the plunger having;

la pin or `alud extendii'ig intoveiaid alot. 3. .In an oil pump, thecombination ot a plunger having' ita outer end threaded and providedwith a loiigiludinal slot, an iiitcr. nally threaded :sleeve on thethreaded :sect ion of the plunger vand adapted to vary thc length ot'said lelet, a clamp or lock pin extending through said sleeve and intociigagemont with -the plunger to hold the sleeve statio'iiail'y iii anyadjusted position, and

means for reciprocating the i'ilunger includ- `ingr a pin or studextending into said Slot.

relatively stationary body having the puinp into the barrel, a glandSecured within tlin ciprocatingr the plunger. l

(i. In an oil pump, the combination ol a body having' the piunp barrelformed therein, a plunger extending into the barrel, a. `gland havingr athreaded section screwed. into the open end oi? the pump barrel, theportion of Said gland that, projecta from the pump barrel being,-polygonal in cross section, a. hollow cap detachably connected with thebody and engaging said projecting portion oi the gland, and in'eans forreciprocating the plunger.

7. In an oil pump, the combination of a relatively stationary bodyhaving two pump barrels formed therein, iilnngers extending into saidbarrelv and nach provided beyond its barrel with a longitudinal slot, asha-.tt mounted in said body, a i'od connected with the elialt. to berecii'iroeated thereby, a pii'i carried by said rod and extending intothe .silots in the piangere, a glandfscrewed into the open end ot eachpump barrel, and a hollow rap detaeliabtif' connected. with the body andprin idcd with `faith-.S 'for the plinigers and willi means for engagingsaid glands. i l

S. ln an oil pump, the combination of a body having two pump barrels andsuitable Supply and discharge ducts formed therein,l

plune'crs exteiiffling into said barrels, a shaft, a rod arranged withina slot in the body and haringh one end ccccntrically connected with theshalt. and its other end extending be tween the pluiigers, the walls ofsaid slot preventingl lateral movement-(of the rod t0- ivard eitherplnnofer and a` pin detaelialily connected with .Said rod and engagingthe planners to iaiiiiiinniieate reciprocating ino`- tion thereto.

ln an oil pump, the combination with a body having' a. pumpv barrel andsuitable supply and discharge duets formed therein, a. plunger extendinginto the barrel, and iiicaiirs l'or rcriprocatii'iii;. the plunger, ofolieclc value; igoiiti'ollino the flow oit oil to and lroiii the pumpbarrel and each coin prism; a tubular seat which is screived into a.suitable soi-liet, in the body and provided with opening-acomninnieating;n with ducts in p f #aid body, a ball within said seat, aloelc nut; barrel tormed therein a ilunffer extendine' L 7 t5 ri openend ot the barrel, a guide for the plunl `ger detachably connected withthe pump bodyaiid engaging said gland, and means for reeipr'ieatiiig theplunger.

5. In n oil pump, the combination ot a relativel stationary body havingthe pump lia'ri'elli rined therein, a plungerextending bai-rel, ay glandsecured Within the open ei d the barrel, a1 hollow cap detacliablyconnected with the body and suit tlie combination with' f said body, a,A for holding'Y-tvhe seat in position on the body,

piising u tubular seat, Whiclris screwed into axsuitable `slmket in.`@he body and provided with openings communicating withl ducts in 1 allWithin said seat, a lock nut 'a plug closing the outer end fftlie valveseat, a spring .between said plug and ball, and soft I Iietal asketsarranged respectively 'between `the va' Ve seat and body, the locksubstantially as lmd for the purpose dcscribed.

i In testimony whereof I affix my signa-ture in presence of twoWitnesses.

RUSSELL NUFF.

' l Witnesses:

VINCENT LINK,

ALLEN LOOMIS.

nut and body, and the plug and wily@ seal, 11,;

